Even the very first COVID-19 study [1] showed that 42% of the survivors (and _all_ of the deceased) treated in the Wuhan pulmonary hospitals experienced sepsis. Sepsis [3] causes tissue death all around the body, leading to permanent decrease in the function of the affected organs. Our ways of mitigating sepsis work only for bacterial infections, which COVID-19 isn't [2].

Sepsis aside, just plain pneumonia in adults is no laughing matter: pneumonia survivors are twice as likely to die as others in their demographic, be they rich, poor, old or young [4]. See the long term effects of SARS: if you survive, your health status and exercise capacity will be impaired for a long time, potentially for the rest of your life [5].

[1] https://www.thelancet.com/journals/lancet/article/PIIS0140-6...

[2] https://www.epmmagazine.com/news/new-drug-could-stop-sepsis-...

[3] https://www.who.int/news-room/fact-sheets/detail/sepsis

[4] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4066634/

[5] https://www.ncbi.nlm.nih.gov/pubmed/20337995